Home / 18,209.22-27,320.36-7,123.87

Finding the Fourth Proportional to 18,209.22, 27,320.36 and 7,123.87

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Solution

The fourth proportional to 18,209.22, 27,320.36 and 7,123.87 is: 10,688.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,209.22 : 27,320.36 = 7,123.87 : x
  2. Step 2: Convert to fraction form
    18,209.22/27,320.36 = 7,123.87/x
  3. Step 3: Cross multiply
    18,209.22x = 27,320.36 × 7,123.87
  4. Step 4: Simplify right side
    18,209.22x = 194,626,692.99
  5. Step 5: Solve for x
    x = 194,626,692.99/18,209.22
  6. Step 6: Final answer
    x = 10,688.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.